diff --git a/projects/main/src/taoensso/telemere/utils.cljc b/projects/main/src/taoensso/telemere/utils.cljc
index 1ec1aed..6f897d6 100644
--- a/projects/main/src/taoensso/telemere/utils.cljc
+++ b/projects/main/src/taoensso/telemere/utils.cljc
@@ -508,7 +508,7 @@
   Returns a (fn preamble [signal]) that:
     - Takes a Telemere signal (map).
     - Returns a signal preamble ?string like:
-      \"2024-03-26T11:14:51.806Z INFO EVENT Hostname taoensso.telemere(2,21) ::ev-id - msg\"
+      \"2024-03-26T11:14:51.806Z INFO EVENT Hostname taoensso.telemere(2,21) ::ev-id msg\"
 
   Options:
     `:format-inst-fn` - (fn format [instant]) => string.
@@ -518,7 +518,7 @@
   ([{:keys [format-inst-fn format-id-fn format-msg-fn]
      :or   {format-inst-fn (format-inst-fn)
             format-id-fn   format-id
-            format-msg-fn  (fn [msg] (str "- " msg))}}]
+            format-msg-fn  identity}}]
 
    (fn signal-preamble [signal]
      (let [{:keys [inst level kind ns id msg_]} signal
diff --git a/projects/main/test/taoensso/telemere_tests.cljc b/projects/main/test/taoensso/telemere_tests.cljc
index d3ce885..7c846f8 100644
--- a/projects/main/test/taoensso/telemere_tests.cljc
+++ b/projects/main/test/taoensso/telemere_tests.cljc
@@ -852,7 +852,7 @@
         (let [sig      (with-sig :raw :trap (tel/event! ::ev-id {:inst t1, :msg ["a" "b"]}))
               preamble ((utils/signal-preamble-fn) sig)] ; "2024-06-09T21:15:20.170Z INFO EVENT taoensso.telemere-tests(592,35) ::ev-id"
           [(is (enc/str-starts-with? preamble "2024-01-01T01:01:01.110Z INFO EVENT"))
-           (is (enc/str-ends-with?   preamble "::ev-id - a b"))
+           (is (enc/str-ends-with?   preamble "::ev-id a b"))
            (is (string? (re-find #"taoensso.telemere-tests\(\d+,\d+\)" preamble)))]))
 
       (testing "pr-signal-fn"
@@ -891,7 +891,7 @@
       (testing "format-signal-fn"
         (let [sig (with-sig :raw :trap (tel/event! ::ev-id {:inst t1, :msg ["a" "b"]}))]
           [(is (enc/str-starts-with? ((tel/format-signal-fn)         sig       ) "2024-01-01T01:01:01.110Z INFO EVENT"))
-           (is (enc/str-ends-with?   ((tel/format-signal-fn) (dissoc sig :host)) "::ev-id - a b\n"))]))])])
+           (is (enc/str-ends-with?   ((tel/format-signal-fn) (dissoc sig :host)) "::ev-id a b\n"))]))])])
 
 ;;;; File handler